For me, when I ran journalctl (see above) the following message was present: "kernel: PM: Image not found (code -16)". The minus sign is prefixed to the error code and 16 is a standard linux kernel error code, i.e.
$ grep 16 /usr/include/asm-generic/errno-base.h #define EBUSY 16 /* Device or resource busy */ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1962359 Title: Hibernation fails due to resource busy during swap file check To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1962359/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
